EP0893905A3 - Image communication apparatus, method, and system, and image communication processing program contained in computer-readable medium - Google Patents

Image communication apparatus, method, and system, and image communication processing program contained in computer-readable medium Download PDF

Info

Publication number
EP0893905A3
EP0893905A3 EP19980305862 EP98305862A EP0893905A3 EP 0893905 A3 EP0893905 A3 EP 0893905A3 EP 19980305862 EP19980305862 EP 19980305862 EP 98305862 A EP98305862 A EP 98305862A EP 0893905 A3 EP0893905 A3 EP 0893905A3
Authority
EP
European Patent Office
Prior art keywords
image communication
signal
computer
readable medium
processing program
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19980305862
Other languages
German (de)
French (fr)
Other versions
EP0893905B1 (en
EP0893905A2 (en
Inventor
Hirofumi Suda
Hiroo Edakubo
Kazuhiro Takahashi
Hideyuki c/o Canon Kabushiki Kaisha Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0893905A2 publication Critical patent/EP0893905A2/en
Publication of EP0893905A3 publication Critical patent/EP0893905A3/en
Application granted granted Critical
Publication of EP0893905B1 publication Critical patent/EP0893905B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H04N1/00103—Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
    • H04N1/32702—Initiating, continuing or ending a single-mode communication; Handshaking therefor using digital control signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation

Abstract

A transmission station performs carrier sense for a predetermined time and sends a request to send (RTS) signal to the partner station. When a clear to send (CTS) signal is received from the partner station within a predetermined waiting time Tw, the transmission station waits for the AGC rise time and transmits the first packet comprised of a data portion and a header portion containing a synchronization signal (SYNC) and an ID signal. Next, the transmission station continuously transmits the second packet. The header portions of the subsequent packets contain only synchronization signals. With this arrangement, when a plurality of transmission stations want to transmit image data by radio using asynchronous TDMA, image data for one picture can be transmitted in a short time without interruption.
EP19980305862 1997-07-25 1998-07-22 Image communication apparatus, method, and system, and image communication processing program contained in computer-readable medium Expired - Lifetime EP0893905B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20021897 1997-07-25
JP200218/97 1997-07-25
JP20021897A JP3492157B2 (en) 1997-07-25 1997-07-25 Imaging device and image transmission device

Publications (3)

Publication Number Publication Date
EP0893905A2 EP0893905A2 (en) 1999-01-27
EP0893905A3 true EP0893905A3 (en) 2001-01-31
EP0893905B1 EP0893905B1 (en) 2007-01-24

Family

ID=16420781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980305862 Expired - Lifetime EP0893905B1 (en) 1997-07-25 1998-07-22 Image communication apparatus, method, and system, and image communication processing program contained in computer-readable medium

Country Status (4)

Country Link
US (1) US6385177B1 (en)
EP (1) EP0893905B1 (en)
JP (1) JP3492157B2 (en)
DE (1) DE69836939T2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000209586A (en) * 1999-01-18 2000-07-28 Fujitsu Ltd Picture transmission equipment
US7372485B1 (en) 1999-06-08 2008-05-13 Lightsurf Technologies, Inc. Digital camera device and methodology for distributed processing and wireless transmission of digital images
US8212893B2 (en) * 1999-06-08 2012-07-03 Verisign, Inc. Digital camera device and methodology for distributed processing and wireless transmission of digital images
US7369161B2 (en) * 1999-06-08 2008-05-06 Lightsurf Technologies, Inc. Digital camera device providing improved methodology for rapidly taking successive pictures
US7103357B2 (en) * 1999-11-05 2006-09-05 Lightsurf Technologies, Inc. Media spooler system and methodology providing efficient transmission of media content from wireless devices
US7847833B2 (en) * 2001-02-07 2010-12-07 Verisign, Inc. Digital camera device providing improved methodology for rapidly taking successive pictures
GB0015454D0 (en) * 2000-06-26 2000-08-16 Koninkl Philips Electronics Nv Data delivery through beacons
US7305354B2 (en) 2001-03-20 2007-12-04 Lightsurf,Technologies, Inc. Media asset management system
US20020193157A1 (en) * 2001-06-18 2002-12-19 Canon Kabushiki Kaisha Computer device for implementing a trading card game and control method therefor, program executed by computer device, controller, system, and game cards
US7724281B2 (en) 2002-02-04 2010-05-25 Syniverse Icx Corporation Device facilitating efficient transfer of digital content from media capture device
DE10218425A1 (en) * 2002-04-24 2003-11-06 Grundig Ag I Ins Method and device for synchronizing a receiver with a transmitter during data transmission over an asynchronous network
JP4108390B2 (en) * 2002-07-08 2008-06-25 松下電器産業株式会社 Wireless communication method, wireless communication terminal, and wireless LAN system
KR100540662B1 (en) 2004-01-07 2006-01-12 삼성전자주식회사 Method and apparatus for setting channel automatically in wireless transceiver system
DE102017130980A1 (en) * 2017-12-21 2019-06-27 Schölly Fiberoptic GmbH Image transfer arrangement and method for image transfer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995032594A1 (en) * 1994-05-20 1995-11-30 Ntt Mobile Communication Network Inc. Cellular mobile radiocommunication system soft-handover scheme
WO1996027250A1 (en) * 1995-02-28 1996-09-06 Qualcomm Incorporated Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
US5592536A (en) * 1992-10-22 1997-01-07 Te Electronics, Inc. Apparatus and method for fast initiation of connection in cordless telephones
JPH09252491A (en) * 1997-01-31 1997-09-22 Hitachi Ltd Radio terminal equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09172446A (en) * 1995-10-20 1997-06-30 Fuji Xerox Co Ltd Lan of multiple bus system and radio lan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5592536A (en) * 1992-10-22 1997-01-07 Te Electronics, Inc. Apparatus and method for fast initiation of connection in cordless telephones
WO1995032594A1 (en) * 1994-05-20 1995-11-30 Ntt Mobile Communication Network Inc. Cellular mobile radiocommunication system soft-handover scheme
WO1996027250A1 (en) * 1995-02-28 1996-09-06 Qualcomm Incorporated Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
JPH09252491A (en) * 1997-01-31 1997-09-22 Hitachi Ltd Radio terminal equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *

Also Published As

Publication number Publication date
DE69836939D1 (en) 2007-03-15
EP0893905B1 (en) 2007-01-24
EP0893905A2 (en) 1999-01-27
US6385177B1 (en) 2002-05-07
DE69836939T2 (en) 2007-05-31
JPH1146294A (en) 1999-02-16
JP3492157B2 (en) 2004-02-03

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